Here is the full list of all 25 Soulsland: Last Fight achievements.
Find captured souls flying town
Find captured souls land of grass
Find captured souls windmill area
Find captured souls coral town
Find golden skull tropic village
Find golden skull dark dungeon map
Find captured souls desert
Find golden skull desert map
Find captured souls dark dungeon
Find captured souls dungeon
Find captured souls Old Town
Find captured souls tropic village
Find captured souls Castle Ruins
Find captured souls arena
Play Windmills area
Play land of grass
Play dark dungeon
Play tropic village
Play arena
Play flying town
Play coral town
Play desert map
Play dungeon
Play Castle Ruins
Play Old Town